Account Settled in 2013,but getting calls

Hi,<br> <br> I settled my account for a laptop I took through Finchoice in 2013. Since May this year I have been receiving calls every second day from call-centre agents telling me I owe Finchoice R100 and some change, I keep telling them I settled the account, they acknowledge it but still the calls keep coming. This is now extremely annoying and reflects very badly on Finchoice's ability to keep proper records. I want an apology and another confirmation that the account has been settled!!!